//===---------------------------- libunwind.h -----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
// Compatible with libunwind API documented at:
//   http://www.nongnu.org/libunwind/man/libunwind(3).html
//
//===----------------------------------------------------------------------===//

#ifndef __LIBUNWIND__
#define __LIBUNWIND__

#include <__libunwind_config.h>
#include <stddef.h>
#include <stdint.h>

#ifdef __APPLE__
#if __clang__
#if __has_include(<Availability.h>)
#include <Availability.h>
#endif
#elif __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
#include <Availability.h>
#endif

#ifdef __arm__
#define LIBUNWIND_AVAIL __attribute__((unavailable))
#elif defined(__OSX_AVAILABLE_STARTING)
#define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0)
#else
#include <AvailabilityMacros.h>
#ifdef AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
#define LIBUNWIND_AVAIL AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
#else
#define LIBUNWIND_AVAIL __attribute__((unavailable))
#endif
#endif
#else
#define LIBUNWIND_AVAIL
#endif

#if defined(_WIN32) && defined(__SEH__)
#define LIBUNWIND_CURSOR_ALIGNMENT_ATTR __attribute__((__aligned__(16)))
#else
#define LIBUNWIND_CURSOR_ALIGNMENT_ATTR
#endif

/* error codes */
enum
{
    UNW_ESUCCESS = 0, /* no error */
    UNW_EUNSPEC = -6540, /* unspecified (general) error */
    UNW_ENOMEM = -6541, /* out of memory */
    UNW_EBADREG = -6542, /* bad register number */
    UNW_EREADONLYREG = -6543, /* attempt to write read-only register */
    UNW_ESTOPUNWIND = -6544, /* stop unwinding */
    UNW_EINVALIDIP = -6545, /* invalid IP */
    UNW_EBADFRAME = -6546, /* bad frame */
    UNW_EINVAL = -6547, /* unsupported operation or bad value */
    UNW_EBADVERSION = -6548, /* unwind info has unsupported version */
    UNW_ENOINFO = -6549 /* no unwind info found */
#if defined(_LIBUNWIND_TARGET_AARCH64) && !defined(_LIBUNWIND_IS_NATIVE_ONLY)
        ,
    UNW_ECROSSRASIGNING = -6550 /* cross unwind with return address signing */
#endif
};

struct unw_context_t
{
    uint64_t data[_LIBUNWIND_CONTEXT_SIZE];
};
typedef struct unw_context_t unw_context_t;

struct unw_cursor_t
{
    uint64_t data[_LIBUNWIND_CURSOR_SIZE];
} LIBUNWIND_CURSOR_ALIGNMENT_ATTR;
typedef struct unw_cursor_t unw_cursor_t;

typedef struct unw_addr_space * unw_addr_space_t;

typedef int unw_regnum_t;
typedef uintptr_t unw_word_t;
#if defined(__arm__) && !defined(__ARM_DWARF_EH__)
typedef uint64_t unw_fpreg_t;
#else
typedef double unw_fpreg_t;
#endif

struct unw_proc_info_t
{
    unw_word_t start_ip; /* start address of function */
    unw_word_t end_ip; /* address after end of function */
    unw_word_t lsda; /* address of language specific data area, */
    /*  or zero if not used */
    unw_word_t handler; /* personality routine, or zero if not used */
    unw_word_t gp; /* not used */
    unw_word_t flags; /* not used */
    uint32_t format; /* compact unwind encoding, or zero if none */
    uint32_t unwind_info_size; /* size of DWARF unwind info, or zero if none */
    unw_word_t unwind_info; /* address of DWARF unwind info, or zero */
    unw_word_t extra; /* mach_header of mach-o image containing func */
};
typedef struct unw_proc_info_t unw_proc_info_t;

#ifdef __cplusplus
extern "C" {
#endif

extern int unw_getcontext(unw_context_t *) LIBUNWIND_AVAIL;
extern int unw_init_local(unw_cursor_t *, unw_context_t *) LIBUNWIND_AVAIL;
extern int unw_step(unw_cursor_t *) LIBUNWIND_AVAIL;
extern int unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *) LIBUNWIND_AVAIL;
extern int unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *) LIBUNWIND_AVAIL;
extern int unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t) LIBUNWIND_AVAIL;
extern int unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t) LIBUNWIND_AVAIL;
extern int unw_resume(unw_cursor_t *) LIBUNWIND_AVAIL;

#ifdef __arm__
/* Save VFP registers in FSTMX format (instead of FSTMD). */
extern void unw_save_vfp_as_X(unw_cursor_t *) LIBUNWIND_AVAIL;
#endif


extern const char * unw_regname(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL;
extern int unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *) LIBUNWIND_AVAIL;
extern int unw_is_fpreg(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL;
extern int unw_is_signal_frame(unw_cursor_t *) LIBUNWIND_AVAIL;
extern int unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *) LIBUNWIND_AVAIL;
//extern int       unw_get_save_loc(unw_cursor_t*, int, unw_save_loc_t*);

extern unw_addr_space_t unw_local_addr_space;

#ifdef __cplusplus
}
#endif

// architecture independent register numbers
enum
{
    UNW_REG_IP = -1, // instruction pointer
    UNW_REG_SP = -2, // stack pointer
};

// 32-bit x86 registers
enum
{
    UNW_X86_EAX = 0,
    UNW_X86_ECX = 1,
    UNW_X86_EDX = 2,
    UNW_X86_EBX = 3,
    UNW_X86_EBP = 4,
    UNW_X86_ESP = 5,
    UNW_X86_ESI = 6,
    UNW_X86_EDI = 7
};

// 64-bit x86_64 registers
enum
{
    UNW_X86_64_RAX = 0,
    UNW_X86_64_RDX = 1,
    UNW_X86_64_RCX = 2,
    UNW_X86_64_RBX = 3,
    UNW_X86_64_RSI = 4,
    UNW_X86_64_RDI = 5,
    UNW_X86_64_RBP = 6,
    UNW_X86_64_RSP = 7,
    UNW_X86_64_R8 = 8,
    UNW_X86_64_R9 = 9,
    UNW_X86_64_R10 = 10,
    UNW_X86_64_R11 = 11,
    UNW_X86_64_R12 = 12,
    UNW_X86_64_R13 = 13,
    UNW_X86_64_R14 = 14,
    UNW_X86_64_R15 = 15,
    UNW_X86_64_RIP = 16,
    UNW_X86_64_XMM0 = 17,
    UNW_X86_64_XMM1 = 18,
    UNW_X86_64_XMM2 = 19,
    UNW_X86_64_XMM3 = 20,
    UNW_X86_64_XMM4 = 21,
    UNW_X86_64_XMM5 = 22,
    UNW_X86_64_XMM6 = 23,
    UNW_X86_64_XMM7 = 24,
    UNW_X86_64_XMM8 = 25,
    UNW_X86_64_XMM9 = 26,
    UNW_X86_64_XMM10 = 27,
    UNW_X86_64_XMM11 = 28,
    UNW_X86_64_XMM12 = 29,
    UNW_X86_64_XMM13 = 30,
    UNW_X86_64_XMM14 = 31,
    UNW_X86_64_XMM15 = 32,
};


// 32-bit ppc register numbers
enum
{
    UNW_PPC_R0 = 0,
    UNW_PPC_R1 = 1,
    UNW_PPC_R2 = 2,
    UNW_PPC_R3 = 3,
    UNW_PPC_R4 = 4,
    UNW_PPC_R5 = 5,
    UNW_PPC_R6 = 6,
    UNW_PPC_R7 = 7,
    UNW_PPC_R8 = 8,
    UNW_PPC_R9 = 9,
    UNW_PPC_R10 = 10,
    UNW_PPC_R11 = 11,
    UNW_PPC_R12 = 12,
    UNW_PPC_R13 = 13,
    UNW_PPC_R14 = 14,
    UNW_PPC_R15 = 15,
    UNW_PPC_R16 = 16,
    UNW_PPC_R17 = 17,
    UNW_PPC_R18 = 18,
    UNW_PPC_R19 = 19,
    UNW_PPC_R20 = 20,
    UNW_PPC_R21 = 21,
    UNW_PPC_R22 = 22,
    UNW_PPC_R23 = 23,
    UNW_PPC_R24 = 24,
    UNW_PPC_R25 = 25,
    UNW_PPC_R26 = 26,
    UNW_PPC_R27 = 27,
    UNW_PPC_R28 = 28,
    UNW_PPC_R29 = 29,
    UNW_PPC_R30 = 30,
    UNW_PPC_R31 = 31,
    UNW_PPC_F0 = 32,
    UNW_PPC_F1 = 33,
    UNW_PPC_F2 = 34,
    UNW_PPC_F3 = 35,
    UNW_PPC_F4 = 36,
    UNW_PPC_F5 = 37,
    UNW_PPC_F6 = 38,
    UNW_PPC_F7 = 39,
    UNW_PPC_F8 = 40,
    UNW_PPC_F9 = 41,
    UNW_PPC_F10 = 42,
    UNW_PPC_F11 = 43,
    UNW_PPC_F12 = 44,
    UNW_PPC_F13 = 45,
    UNW_PPC_F14 = 46,
    UNW_PPC_F15 = 47,
    UNW_PPC_F16 = 48,
    UNW_PPC_F17 = 49,
    UNW_PPC_F18 = 50,
    UNW_PPC_F19 = 51,
    UNW_PPC_F20 = 52,
    UNW_PPC_F21 = 53,
    UNW_PPC_F22 = 54,
    UNW_PPC_F23 = 55,
    UNW_PPC_F24 = 56,
    UNW_PPC_F25 = 57,
    UNW_PPC_F26 = 58,
    UNW_PPC_F27 = 59,
    UNW_PPC_F28 = 60,
    UNW_PPC_F29 = 61,
    UNW_PPC_F30 = 62,
    UNW_PPC_F31 = 63,
    UNW_PPC_MQ = 64,
    UNW_PPC_LR = 65,
    UNW_PPC_CTR = 66,
    UNW_PPC_AP = 67,
    UNW_PPC_CR0 = 68,
    UNW_PPC_CR1 = 69,
    UNW_PPC_CR2 = 70,
    UNW_PPC_CR3 = 71,
    UNW_PPC_CR4 = 72,
    UNW_PPC_CR5 = 73,
    UNW_PPC_CR6 = 74,
    UNW_PPC_CR7 = 75,
    UNW_PPC_XER = 76,
    UNW_PPC_V0 = 77,
    UNW_PPC_V1 = 78,
    UNW_PPC_V2 = 79,
    UNW_PPC_V3 = 80,
    UNW_PPC_V4 = 81,
    UNW_PPC_V5 = 82,
    UNW_PPC_V6 = 83,
    UNW_PPC_V7 = 84,
    UNW_PPC_V8 = 85,
    UNW_PPC_V9 = 86,
    UNW_PPC_V10 = 87,
    UNW_PPC_V11 = 88,
    UNW_PPC_V12 = 89,
    UNW_PPC_V13 = 90,
    UNW_PPC_V14 = 91,
    UNW_PPC_V15 = 92,
    UNW_PPC_V16 = 93,
    UNW_PPC_V17 = 94,
    UNW_PPC_V18 = 95,
    UNW_PPC_V19 = 96,
    UNW_PPC_V20 = 97,
    UNW_PPC_V21 = 98,
    UNW_PPC_V22 = 99,
    UNW_PPC_V23 = 100,
    UNW_PPC_V24 = 101,
    UNW_PPC_V25 = 102,
    UNW_PPC_V26 = 103,
    UNW_PPC_V27 = 104,
    UNW_PPC_V28 = 105,
    UNW_PPC_V29 = 106,
    UNW_PPC_V30 = 107,
    UNW_PPC_V31 = 108,
    UNW_PPC_VRSAVE = 109,
    UNW_PPC_VSCR = 110,
    UNW_PPC_SPE_ACC = 111,
    UNW_PPC_SPEFSCR = 112
};

// 64-bit ppc register numbers
enum
{
    UNW_PPC64_R0 = 0,
    UNW_PPC64_R1 = 1,
    UNW_PPC64_R2 = 2,
    UNW_PPC64_R3 = 3,
    UNW_PPC64_R4 = 4,
    UNW_PPC64_R5 = 5,
    UNW_PPC64_R6 = 6,
    UNW_PPC64_R7 = 7,
    UNW_PPC64_R8 = 8,
    UNW_PPC64_R9 = 9,
    UNW_PPC64_R10 = 10,
    UNW_PPC64_R11 = 11,
    UNW_PPC64_R12 = 12,
    UNW_PPC64_R13 = 13,
    UNW_PPC64_R14 = 14,
    UNW_PPC64_R15 = 15,
    UNW_PPC64_R16 = 16,
    UNW_PPC64_R17 = 17,
    UNW_PPC64_R18 = 18,
    UNW_PPC64_R19 = 19,
    UNW_PPC64_R20 = 20,
    UNW_PPC64_R21 = 21,
    UNW_PPC64_R22 = 22,
    UNW_PPC64_R23 = 23,
    UNW_PPC64_R24 = 24,
    UNW_PPC64_R25 = 25,
    UNW_PPC64_R26 = 26,
    UNW_PPC64_R27 = 27,
    UNW_PPC64_R28 = 28,
    UNW_PPC64_R29 = 29,
    UNW_PPC64_R30 = 30,
    UNW_PPC64_R31 = 31,
    UNW_PPC64_F0 = 32,
    UNW_PPC64_F1 = 33,
    UNW_PPC64_F2 = 34,
    UNW_PPC64_F3 = 35,
    UNW_PPC64_F4 = 36,
    UNW_PPC64_F5 = 37,
    UNW_PPC64_F6 = 38,
    UNW_PPC64_F7 = 39,
    UNW_PPC64_F8 = 40,
    UNW_PPC64_F9 = 41,
    UNW_PPC64_F10 = 42,
    UNW_PPC64_F11 = 43,
    UNW_PPC64_F12 = 44,
    UNW_PPC64_F13 = 45,
    UNW_PPC64_F14 = 46,
    UNW_PPC64_F15 = 47,
    UNW_PPC64_F16 = 48,
    UNW_PPC64_F17 = 49,
    UNW_PPC64_F18 = 50,
    UNW_PPC64_F19 = 51,
    UNW_PPC64_F20 = 52,
    UNW_PPC64_F21 = 53,
    UNW_PPC64_F22 = 54,
    UNW_PPC64_F23 = 55,
    UNW_PPC64_F24 = 56,
    UNW_PPC64_F25 = 57,
    UNW_PPC64_F26 = 58,
    UNW_PPC64_F27 = 59,
    UNW_PPC64_F28 = 60,
    UNW_PPC64_F29 = 61,
    UNW_PPC64_F30 = 62,
    UNW_PPC64_F31 = 63,
    // 64: reserved
    UNW_PPC64_LR = 65,
    UNW_PPC64_CTR = 66,
    // 67: reserved
    UNW_PPC64_CR0 = 68,
    UNW_PPC64_CR1 = 69,
    UNW_PPC64_CR2 = 70,
    UNW_PPC64_CR3 = 71,
    UNW_PPC64_CR4 = 72,
    UNW_PPC64_CR5 = 73,
    UNW_PPC64_CR6 = 74,
    UNW_PPC64_CR7 = 75,
    UNW_PPC64_XER = 76,
    UNW_PPC64_V0 = 77,
    UNW_PPC64_V1 = 78,
    UNW_PPC64_V2 = 79,
    UNW_PPC64_V3 = 80,
    UNW_PPC64_V4 = 81,
    UNW_PPC64_V5 = 82,
    UNW_PPC64_V6 = 83,
    UNW_PPC64_V7 = 84,
    UNW_PPC64_V8 = 85,
    UNW_PPC64_V9 = 86,
    UNW_PPC64_V10 = 87,
    UNW_PPC64_V11 = 88,
    UNW_PPC64_V12 = 89,
    UNW_PPC64_V13 = 90,
    UNW_PPC64_V14 = 91,
    UNW_PPC64_V15 = 92,
    UNW_PPC64_V16 = 93,
    UNW_PPC64_V17 = 94,
    UNW_PPC64_V18 = 95,
    UNW_PPC64_V19 = 96,
    UNW_PPC64_V20 = 97,
    UNW_PPC64_V21 = 98,
    UNW_PPC64_V22 = 99,
    UNW_PPC64_V23 = 100,
    UNW_PPC64_V24 = 101,
    UNW_PPC64_V25 = 102,
    UNW_PPC64_V26 = 103,
    UNW_PPC64_V27 = 104,
    UNW_PPC64_V28 = 105,
    UNW_PPC64_V29 = 106,
    UNW_PPC64_V30 = 107,
    UNW_PPC64_V31 = 108,
    // 109, 111-113: OpenPOWER ELF V2 ABI: reserved
    // Borrowing VRSAVE number from PPC32.
    UNW_PPC64_VRSAVE = 109,
    UNW_PPC64_VSCR = 110,
    UNW_PPC64_TFHAR = 114,
    UNW_PPC64_TFIAR = 115,
    UNW_PPC64_TEXASR = 116,
    UNW_PPC64_VS0 = UNW_PPC64_F0,
    UNW_PPC64_VS1 = UNW_PPC64_F1,
    UNW_PPC64_VS2 = UNW_PPC64_F2,
    UNW_PPC64_VS3 = UNW_PPC64_F3,
    UNW_PPC64_VS4 = UNW_PPC64_F4,
    UNW_PPC64_VS5 = UNW_PPC64_F5,
    UNW_PPC64_VS6 = UNW_PPC64_F6,
    UNW_PPC64_VS7 = UNW_PPC64_F7,
    UNW_PPC64_VS8 = UNW_PPC64_F8,
    UNW_PPC64_VS9 = UNW_PPC64_F9,
    UNW_PPC64_VS10 = UNW_PPC64_F10,
    UNW_PPC64_VS11 = UNW_PPC64_F11,
    UNW_PPC64_VS12 = UNW_PPC64_F12,
    UNW_PPC64_VS13 = UNW_PPC64_F13,
    UNW_PPC64_VS14 = UNW_PPC64_F14,
    UNW_PPC64_VS15 = UNW_PPC64_F15,
    UNW_PPC64_VS16 = UNW_PPC64_F16,
    UNW_PPC64_VS17 = UNW_PPC64_F17,
    UNW_PPC64_VS18 = UNW_PPC64_F18,
    UNW_PPC64_VS19 = UNW_PPC64_F19,
    UNW_PPC64_VS20 = UNW_PPC64_F20,
    UNW_PPC64_VS21 = UNW_PPC64_F21,
    UNW_PPC64_VS22 = UNW_PPC64_F22,
    UNW_PPC64_VS23 = UNW_PPC64_F23,
    UNW_PPC64_VS24 = UNW_PPC64_F24,
    UNW_PPC64_VS25 = UNW_PPC64_F25,
    UNW_PPC64_VS26 = UNW_PPC64_F26,
    UNW_PPC64_VS27 = UNW_PPC64_F27,
    UNW_PPC64_VS28 = UNW_PPC64_F28,
    UNW_PPC64_VS29 = UNW_PPC64_F29,
    UNW_PPC64_VS30 = UNW_PPC64_F30,
    UNW_PPC64_VS31 = UNW_PPC64_F31,
    UNW_PPC64_VS32 = UNW_PPC64_V0,
    UNW_PPC64_VS33 = UNW_PPC64_V1,
    UNW_PPC64_VS34 = UNW_PPC64_V2,
    UNW_PPC64_VS35 = UNW_PPC64_V3,
    UNW_PPC64_VS36 = UNW_PPC64_V4,
    UNW_PPC64_VS37 = UNW_PPC64_V5,
    UNW_PPC64_VS38 = UNW_PPC64_V6,
    UNW_PPC64_VS39 = UNW_PPC64_V7,
    UNW_PPC64_VS40 = UNW_PPC64_V8,
    UNW_PPC64_VS41 = UNW_PPC64_V9,
    UNW_PPC64_VS42 = UNW_PPC64_V10,
    UNW_PPC64_VS43 = UNW_PPC64_V11,
    UNW_PPC64_VS44 = UNW_PPC64_V12,
    UNW_PPC64_VS45 = UNW_PPC64_V13,
    UNW_PPC64_VS46 = UNW_PPC64_V14,
    UNW_PPC64_VS47 = UNW_PPC64_V15,
    UNW_PPC64_VS48 = UNW_PPC64_V16,
    UNW_PPC64_VS49 = UNW_PPC64_V17,
    UNW_PPC64_VS50 = UNW_PPC64_V18,
    UNW_PPC64_VS51 = UNW_PPC64_V19,
    UNW_PPC64_VS52 = UNW_PPC64_V20,
    UNW_PPC64_VS53 = UNW_PPC64_V21,
    UNW_PPC64_VS54 = UNW_PPC64_V22,
    UNW_PPC64_VS55 = UNW_PPC64_V23,
    UNW_PPC64_VS56 = UNW_PPC64_V24,
    UNW_PPC64_VS57 = UNW_PPC64_V25,
    UNW_PPC64_VS58 = UNW_PPC64_V26,
    UNW_PPC64_VS59 = UNW_PPC64_V27,
    UNW_PPC64_VS60 = UNW_PPC64_V28,
    UNW_PPC64_VS61 = UNW_PPC64_V29,
    UNW_PPC64_VS62 = UNW_PPC64_V30,
    UNW_PPC64_VS63 = UNW_PPC64_V31
};

// 64-bit ARM64 registers
enum
{
    UNW_ARM64_X0 = 0,
    UNW_ARM64_X1 = 1,
    UNW_ARM64_X2 = 2,
    UNW_ARM64_X3 = 3,
    UNW_ARM64_X4 = 4,
    UNW_ARM64_X5 = 5,
    UNW_ARM64_X6 = 6,
    UNW_ARM64_X7 = 7,
    UNW_ARM64_X8 = 8,
    UNW_ARM64_X9 = 9,
    UNW_ARM64_X10 = 10,
    UNW_ARM64_X11 = 11,
    UNW_ARM64_X12 = 12,
    UNW_ARM64_X13 = 13,
    UNW_ARM64_X14 = 14,
    UNW_ARM64_X15 = 15,
    UNW_ARM64_X16 = 16,
    UNW_ARM64_X17 = 17,
    UNW_ARM64_X18 = 18,
    UNW_ARM64_X19 = 19,
    UNW_ARM64_X20 = 20,
    UNW_ARM64_X21 = 21,
    UNW_ARM64_X22 = 22,
    UNW_ARM64_X23 = 23,
    UNW_ARM64_X24 = 24,
    UNW_ARM64_X25 = 25,
    UNW_ARM64_X26 = 26,
    UNW_ARM64_X27 = 27,
    UNW_ARM64_X28 = 28,
    UNW_ARM64_X29 = 29,
    UNW_ARM64_FP = 29,
    UNW_ARM64_X30 = 30,
    UNW_ARM64_LR = 30,
    UNW_ARM64_X31 = 31,
    UNW_ARM64_SP = 31,
    UNW_ARM64_PC = 32,
    // reserved block
    UNW_ARM64_RA_SIGN_STATE = 34,
    // reserved block
    UNW_ARM64_D0 = 64,
    UNW_ARM64_D1 = 65,
    UNW_ARM64_D2 = 66,
    UNW_ARM64_D3 = 67,
    UNW_ARM64_D4 = 68,
    UNW_ARM64_D5 = 69,
    UNW_ARM64_D6 = 70,
    UNW_ARM64_D7 = 71,
    UNW_ARM64_D8 = 72,
    UNW_ARM64_D9 = 73,
    UNW_ARM64_D10 = 74,
    UNW_ARM64_D11 = 75,
    UNW_ARM64_D12 = 76,
    UNW_ARM64_D13 = 77,
    UNW_ARM64_D14 = 78,
    UNW_ARM64_D15 = 79,
    UNW_ARM64_D16 = 80,
    UNW_ARM64_D17 = 81,
    UNW_ARM64_D18 = 82,
    UNW_ARM64_D19 = 83,
    UNW_ARM64_D20 = 84,
    UNW_ARM64_D21 = 85,
    UNW_ARM64_D22 = 86,
    UNW_ARM64_D23 = 87,
    UNW_ARM64_D24 = 88,
    UNW_ARM64_D25 = 89,
    UNW_ARM64_D26 = 90,
    UNW_ARM64_D27 = 91,
    UNW_ARM64_D28 = 92,
    UNW_ARM64_D29 = 93,
    UNW_ARM64_D30 = 94,
    UNW_ARM64_D31 = 95,
};

// 32-bit ARM registers. Numbers match DWARF for ARM spec #3.1 Table 1.
// Naming scheme uses recommendations given in Note 4 for VFP-v2 and VFP-v3.
// In this scheme, even though the 64-bit floating point registers D0-D31
// overlap physically with the 32-bit floating pointer registers S0-S31,
// they are given a non-overlapping range of register numbers.
//
// Commented out ranges are not preserved during unwinding.
enum
{
    UNW_ARM_R0 = 0,
    UNW_ARM_R1 = 1,
    UNW_ARM_R2 = 2,
    UNW_ARM_R3 = 3,
    UNW_ARM_R4 = 4,
    UNW_ARM_R5 = 5,
    UNW_ARM_R6 = 6,
    UNW_ARM_R7 = 7,
    UNW_ARM_R8 = 8,
    UNW_ARM_R9 = 9,
    UNW_ARM_R10 = 10,
    UNW_ARM_R11 = 11,
    UNW_ARM_R12 = 12,
    UNW_ARM_SP = 13, // Logical alias for UNW_REG_SP
    UNW_ARM_R13 = 13,
    UNW_ARM_LR = 14,
    UNW_ARM_R14 = 14,
    UNW_ARM_IP = 15, // Logical alias for UNW_REG_IP
    UNW_ARM_R15 = 15,
    // 16-63 -- OBSOLETE. Used in VFP1 to represent both S0-S31 and D0-D31.
    UNW_ARM_S0 = 64,
    UNW_ARM_S1 = 65,
    UNW_ARM_S2 = 66,
    UNW_ARM_S3 = 67,
    UNW_ARM_S4 = 68,
    UNW_ARM_S5 = 69,
    UNW_ARM_S6 = 70,
    UNW_ARM_S7 = 71,
    UNW_ARM_S8 = 72,
    UNW_ARM_S9 = 73,
    UNW_ARM_S10 = 74,
    UNW_ARM_S11 = 75,
    UNW_ARM_S12 = 76,
    UNW_ARM_S13 = 77,
    UNW_ARM_S14 = 78,
    UNW_ARM_S15 = 79,
    UNW_ARM_S16 = 80,
    UNW_ARM_S17 = 81,
    UNW_ARM_S18 = 82,
    UNW_ARM_S19 = 83,
    UNW_ARM_S20 = 84,
    UNW_ARM_S21 = 85,
    UNW_ARM_S22 = 86,
    UNW_ARM_S23 = 87,
    UNW_ARM_S24 = 88,
    UNW_ARM_S25 = 89,
    UNW_ARM_S26 = 90,
    UNW_ARM_S27 = 91,
    UNW_ARM_S28 = 92,
    UNW_ARM_S29 = 93,
    UNW_ARM_S30 = 94,
    UNW_ARM_S31 = 95,
    //  96-103 -- OBSOLETE. F0-F7. Used by the FPA system. Superseded by VFP.
    // 104-111 -- wCGR0-wCGR7, ACC0-ACC7 (Intel wireless MMX)
    UNW_ARM_WR0 = 112,
    UNW_ARM_WR1 = 113,
    UNW_ARM_WR2 = 114,
    UNW_ARM_WR3 = 115,
    UNW_ARM_WR4 = 116,
    UNW_ARM_WR5 = 117,
    UNW_ARM_WR6 = 118,
    UNW_ARM_WR7 = 119,
    UNW_ARM_WR8 = 120,
    UNW_ARM_WR9 = 121,
    UNW_ARM_WR10 = 122,
    UNW_ARM_WR11 = 123,
    UNW_ARM_WR12 = 124,
    UNW_ARM_WR13 = 125,
    UNW_ARM_WR14 = 126,
    UNW_ARM_WR15 = 127,
    // 128-133 -- SPSR, SPSR_{FIQ|IRQ|ABT|UND|SVC}
    // 134-143 -- Reserved
    // 144-150 -- R8_USR-R14_USR
    // 151-157 -- R8_FIQ-R14_FIQ
    // 158-159 -- R13_IRQ-R14_IRQ
    // 160-161 -- R13_ABT-R14_ABT
    // 162-163 -- R13_UND-R14_UND
    // 164-165 -- R13_SVC-R14_SVC
    // 166-191 -- Reserved
    UNW_ARM_WC0 = 192,
    UNW_ARM_WC1 = 193,
    UNW_ARM_WC2 = 194,
    UNW_ARM_WC3 = 195,
    // 196-199 -- wC4-wC7 (Intel wireless MMX control)
    // 200-255 -- Reserved
    UNW_ARM_D0 = 256,
    UNW_ARM_D1 = 257,
    UNW_ARM_D2 = 258,
    UNW_ARM_D3 = 259,
    UNW_ARM_D4 = 260,
    UNW_ARM_D5 = 261,
    UNW_ARM_D6 = 262,
    UNW_ARM_D7 = 263,
    UNW_ARM_D8 = 264,
    UNW_ARM_D9 = 265,
    UNW_ARM_D10 = 266,
    UNW_ARM_D11 = 267,
    UNW_ARM_D12 = 268,
    UNW_ARM_D13 = 269,
    UNW_ARM_D14 = 270,
    UNW_ARM_D15 = 271,
    UNW_ARM_D16 = 272,
    UNW_ARM_D17 = 273,
    UNW_ARM_D18 = 274,
    UNW_ARM_D19 = 275,
    UNW_ARM_D20 = 276,
    UNW_ARM_D21 = 277,
    UNW_ARM_D22 = 278,
    UNW_ARM_D23 = 279,
    UNW_ARM_D24 = 280,
    UNW_ARM_D25 = 281,
    UNW_ARM_D26 = 282,
    UNW_ARM_D27 = 283,
    UNW_ARM_D28 = 284,
    UNW_ARM_D29 = 285,
    UNW_ARM_D30 = 286,
    UNW_ARM_D31 = 287,
    // 288-319 -- Reserved for VFP/Neon
    // 320-8191 -- Reserved
    // 8192-16383 -- Unspecified vendor co-processor register.
};

// OpenRISC1000 register numbers
enum
{
    UNW_OR1K_R0 = 0,
    UNW_OR1K_R1 = 1,
    UNW_OR1K_R2 = 2,
    UNW_OR1K_R3 = 3,
    UNW_OR1K_R4 = 4,
    UNW_OR1K_R5 = 5,
    UNW_OR1K_R6 = 6,
    UNW_OR1K_R7 = 7,
    UNW_OR1K_R8 = 8,
    UNW_OR1K_R9 = 9,
    UNW_OR1K_R10 = 10,
    UNW_OR1K_R11 = 11,
    UNW_OR1K_R12 = 12,
    UNW_OR1K_R13 = 13,
    UNW_OR1K_R14 = 14,
    UNW_OR1K_R15 = 15,
    UNW_OR1K_R16 = 16,
    UNW_OR1K_R17 = 17,
    UNW_OR1K_R18 = 18,
    UNW_OR1K_R19 = 19,
    UNW_OR1K_R20 = 20,
    UNW_OR1K_R21 = 21,
    UNW_OR1K_R22 = 22,
    UNW_OR1K_R23 = 23,
    UNW_OR1K_R24 = 24,
    UNW_OR1K_R25 = 25,
    UNW_OR1K_R26 = 26,
    UNW_OR1K_R27 = 27,
    UNW_OR1K_R28 = 28,
    UNW_OR1K_R29 = 29,
    UNW_OR1K_R30 = 30,
    UNW_OR1K_R31 = 31,
    UNW_OR1K_EPCR = 32,
};

// MIPS registers
enum
{
    UNW_MIPS_R0 = 0,
    UNW_MIPS_R1 = 1,
    UNW_MIPS_R2 = 2,
    UNW_MIPS_R3 = 3,
    UNW_MIPS_R4 = 4,
    UNW_MIPS_R5 = 5,
    UNW_MIPS_R6 = 6,
    UNW_MIPS_R7 = 7,
    UNW_MIPS_R8 = 8,
    UNW_MIPS_R9 = 9,
    UNW_MIPS_R10 = 10,
    UNW_MIPS_R11 = 11,
    UNW_MIPS_R12 = 12,
    UNW_MIPS_R13 = 13,
    UNW_MIPS_R14 = 14,
    UNW_MIPS_R15 = 15,
    UNW_MIPS_R16 = 16,
    UNW_MIPS_R17 = 17,
    UNW_MIPS_R18 = 18,
    UNW_MIPS_R19 = 19,
    UNW_MIPS_R20 = 20,
    UNW_MIPS_R21 = 21,
    UNW_MIPS_R22 = 22,
    UNW_MIPS_R23 = 23,
    UNW_MIPS_R24 = 24,
    UNW_MIPS_R25 = 25,
    UNW_MIPS_R26 = 26,
    UNW_MIPS_R27 = 27,
    UNW_MIPS_R28 = 28,
    UNW_MIPS_R29 = 29,
    UNW_MIPS_R30 = 30,
    UNW_MIPS_R31 = 31,
    UNW_MIPS_F0 = 32,
    UNW_MIPS_F1 = 33,
    UNW_MIPS_F2 = 34,
    UNW_MIPS_F3 = 35,
    UNW_MIPS_F4 = 36,
    UNW_MIPS_F5 = 37,
    UNW_MIPS_F6 = 38,
    UNW_MIPS_F7 = 39,
    UNW_MIPS_F8 = 40,
    UNW_MIPS_F9 = 41,
    UNW_MIPS_F10 = 42,
    UNW_MIPS_F11 = 43,
    UNW_MIPS_F12 = 44,
    UNW_MIPS_F13 = 45,
    UNW_MIPS_F14 = 46,
    UNW_MIPS_F15 = 47,
    UNW_MIPS_F16 = 48,
    UNW_MIPS_F17 = 49,
    UNW_MIPS_F18 = 50,
    UNW_MIPS_F19 = 51,
    UNW_MIPS_F20 = 52,
    UNW_MIPS_F21 = 53,
    UNW_MIPS_F22 = 54,
    UNW_MIPS_F23 = 55,
    UNW_MIPS_F24 = 56,
    UNW_MIPS_F25 = 57,
    UNW_MIPS_F26 = 58,
    UNW_MIPS_F27 = 59,
    UNW_MIPS_F28 = 60,
    UNW_MIPS_F29 = 61,
    UNW_MIPS_F30 = 62,
    UNW_MIPS_F31 = 63,
    UNW_MIPS_HI = 64,
    UNW_MIPS_LO = 65,
};

// SPARC registers
enum
{
    UNW_SPARC_G0 = 0,
    UNW_SPARC_G1 = 1,
    UNW_SPARC_G2 = 2,
    UNW_SPARC_G3 = 3,
    UNW_SPARC_G4 = 4,
    UNW_SPARC_G5 = 5,
    UNW_SPARC_G6 = 6,
    UNW_SPARC_G7 = 7,
    UNW_SPARC_O0 = 8,
    UNW_SPARC_O1 = 9,
    UNW_SPARC_O2 = 10,
    UNW_SPARC_O3 = 11,
    UNW_SPARC_O4 = 12,
    UNW_SPARC_O5 = 13,
    UNW_SPARC_O6 = 14,
    UNW_SPARC_O7 = 15,
    UNW_SPARC_L0 = 16,
    UNW_SPARC_L1 = 17,
    UNW_SPARC_L2 = 18,
    UNW_SPARC_L3 = 19,
    UNW_SPARC_L4 = 20,
    UNW_SPARC_L5 = 21,
    UNW_SPARC_L6 = 22,
    UNW_SPARC_L7 = 23,
    UNW_SPARC_I0 = 24,
    UNW_SPARC_I1 = 25,
    UNW_SPARC_I2 = 26,
    UNW_SPARC_I3 = 27,
    UNW_SPARC_I4 = 28,
    UNW_SPARC_I5 = 29,
    UNW_SPARC_I6 = 30,
    UNW_SPARC_I7 = 31,
};

// Hexagon register numbers
enum
{
    UNW_HEXAGON_R0,
    UNW_HEXAGON_R1,
    UNW_HEXAGON_R2,
    UNW_HEXAGON_R3,
    UNW_HEXAGON_R4,
    UNW_HEXAGON_R5,
    UNW_HEXAGON_R6,
    UNW_HEXAGON_R7,
    UNW_HEXAGON_R8,
    UNW_HEXAGON_R9,
    UNW_HEXAGON_R10,
    UNW_HEXAGON_R11,
    UNW_HEXAGON_R12,
    UNW_HEXAGON_R13,
    UNW_HEXAGON_R14,
    UNW_HEXAGON_R15,
    UNW_HEXAGON_R16,
    UNW_HEXAGON_R17,
    UNW_HEXAGON_R18,
    UNW_HEXAGON_R19,
    UNW_HEXAGON_R20,
    UNW_HEXAGON_R21,
    UNW_HEXAGON_R22,
    UNW_HEXAGON_R23,
    UNW_HEXAGON_R24,
    UNW_HEXAGON_R25,
    UNW_HEXAGON_R26,
    UNW_HEXAGON_R27,
    UNW_HEXAGON_R28,
    UNW_HEXAGON_R29,
    UNW_HEXAGON_R30,
    UNW_HEXAGON_R31,
    UNW_HEXAGON_P3_0,
    UNW_HEXAGON_PC,
};

// RISC-V registers. These match the DWARF register numbers defined by section
// 4 of the RISC-V ELF psABI specification, which can be found at:
//
// https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md
enum
{
    UNW_RISCV_X0 = 0,
    UNW_RISCV_X1 = 1,
    UNW_RISCV_X2 = 2,
    UNW_RISCV_X3 = 3,
    UNW_RISCV_X4 = 4,
    UNW_RISCV_X5 = 5,
    UNW_RISCV_X6 = 6,
    UNW_RISCV_X7 = 7,
    UNW_RISCV_X8 = 8,
    UNW_RISCV_X9 = 9,
    UNW_RISCV_X10 = 10,
    UNW_RISCV_X11 = 11,
    UNW_RISCV_X12 = 12,
    UNW_RISCV_X13 = 13,
    UNW_RISCV_X14 = 14,
    UNW_RISCV_X15 = 15,
    UNW_RISCV_X16 = 16,
    UNW_RISCV_X17 = 17,
    UNW_RISCV_X18 = 18,
    UNW_RISCV_X19 = 19,
    UNW_RISCV_X20 = 20,
    UNW_RISCV_X21 = 21,
    UNW_RISCV_X22 = 22,
    UNW_RISCV_X23 = 23,
    UNW_RISCV_X24 = 24,
    UNW_RISCV_X25 = 25,
    UNW_RISCV_X26 = 26,
    UNW_RISCV_X27 = 27,
    UNW_RISCV_X28 = 28,
    UNW_RISCV_X29 = 29,
    UNW_RISCV_X30 = 30,
    UNW_RISCV_X31 = 31,
    UNW_RISCV_F0 = 32,
    UNW_RISCV_F1 = 33,
    UNW_RISCV_F2 = 34,
    UNW_RISCV_F3 = 35,
    UNW_RISCV_F4 = 36,
    UNW_RISCV_F5 = 37,
    UNW_RISCV_F6 = 38,
    UNW_RISCV_F7 = 39,
    UNW_RISCV_F8 = 40,
    UNW_RISCV_F9 = 41,
    UNW_RISCV_F10 = 42,
    UNW_RISCV_F11 = 43,
    UNW_RISCV_F12 = 44,
    UNW_RISCV_F13 = 45,
    UNW_RISCV_F14 = 46,
    UNW_RISCV_F15 = 47,
    UNW_RISCV_F16 = 48,
    UNW_RISCV_F17 = 49,
    UNW_RISCV_F18 = 50,
    UNW_RISCV_F19 = 51,
    UNW_RISCV_F20 = 52,
    UNW_RISCV_F21 = 53,
    UNW_RISCV_F22 = 54,
    UNW_RISCV_F23 = 55,
    UNW_RISCV_F24 = 56,
    UNW_RISCV_F25 = 57,
    UNW_RISCV_F26 = 58,
    UNW_RISCV_F27 = 59,
    UNW_RISCV_F28 = 60,
    UNW_RISCV_F29 = 61,
    UNW_RISCV_F30 = 62,
    UNW_RISCV_F31 = 63,
};

// VE register numbers
enum
{
    UNW_VE_S0 = 0,
    UNW_VE_S1 = 1,
    UNW_VE_S2 = 2,
    UNW_VE_S3 = 3,
    UNW_VE_S4 = 4,
    UNW_VE_S5 = 5,
    UNW_VE_S6 = 6,
    UNW_VE_S7 = 7,
    UNW_VE_S8 = 8,
    UNW_VE_S9 = 9,
    UNW_VE_S10 = 10,
    UNW_VE_S11 = 11,
    UNW_VE_S12 = 12,
    UNW_VE_S13 = 13,
    UNW_VE_S14 = 14,
    UNW_VE_S15 = 15,
    UNW_VE_S16 = 16,
    UNW_VE_S17 = 17,
    UNW_VE_S18 = 18,
    UNW_VE_S19 = 19,
    UNW_VE_S20 = 20,
    UNW_VE_S21 = 21,
    UNW_VE_S22 = 22,
    UNW_VE_S23 = 23,
    UNW_VE_S24 = 24,
    UNW_VE_S25 = 25,
    UNW_VE_S26 = 26,
    UNW_VE_S27 = 27,
    UNW_VE_S28 = 28,
    UNW_VE_S29 = 29,
    UNW_VE_S30 = 30,
    UNW_VE_S31 = 31,
    UNW_VE_S32 = 32,
    UNW_VE_S33 = 33,
    UNW_VE_S34 = 34,
    UNW_VE_S35 = 35,
    UNW_VE_S36 = 36,
    UNW_VE_S37 = 37,
    UNW_VE_S38 = 38,
    UNW_VE_S39 = 39,
    UNW_VE_S40 = 40,
    UNW_VE_S41 = 41,
    UNW_VE_S42 = 42,
    UNW_VE_S43 = 43,
    UNW_VE_S44 = 44,
    UNW_VE_S45 = 45,
    UNW_VE_S46 = 46,
    UNW_VE_S47 = 47,
    UNW_VE_S48 = 48,
    UNW_VE_S49 = 49,
    UNW_VE_S50 = 50,
    UNW_VE_S51 = 51,
    UNW_VE_S52 = 52,
    UNW_VE_S53 = 53,
    UNW_VE_S54 = 54,
    UNW_VE_S55 = 55,
    UNW_VE_S56 = 56,
    UNW_VE_S57 = 57,
    UNW_VE_S58 = 58,
    UNW_VE_S59 = 59,
    UNW_VE_S60 = 60,
    UNW_VE_S61 = 61,
    UNW_VE_S62 = 62,
    UNW_VE_S63 = 63,
    UNW_VE_V0 = 64 + 0,
    UNW_VE_V1 = 64 + 1,
    UNW_VE_V2 = 64 + 2,
    UNW_VE_V3 = 64 + 3,
    UNW_VE_V4 = 64 + 4,
    UNW_VE_V5 = 64 + 5,
    UNW_VE_V6 = 64 + 6,
    UNW_VE_V7 = 64 + 7,
    UNW_VE_V8 = 64 + 8,
    UNW_VE_V9 = 64 + 9,
    UNW_VE_V10 = 64 + 10,
    UNW_VE_V11 = 64 + 11,
    UNW_VE_V12 = 64 + 12,
    UNW_VE_V13 = 64 + 13,
    UNW_VE_V14 = 64 + 14,
    UNW_VE_V15 = 64 + 15,
    UNW_VE_V16 = 64 + 16,
    UNW_VE_V17 = 64 + 17,
    UNW_VE_V18 = 64 + 18,
    UNW_VE_V19 = 64 + 19,
    UNW_VE_V20 = 64 + 20,
    UNW_VE_V21 = 64 + 21,
    UNW_VE_V22 = 64 + 22,
    UNW_VE_V23 = 64 + 23,
    UNW_VE_V24 = 64 + 24,
    UNW_VE_V25 = 64 + 25,
    UNW_VE_V26 = 64 + 26,
    UNW_VE_V27 = 64 + 27,
    UNW_VE_V28 = 64 + 28,
    UNW_VE_V29 = 64 + 29,
    UNW_VE_V30 = 64 + 30,
    UNW_VE_V31 = 64 + 31,
    UNW_VE_V32 = 64 + 32,
    UNW_VE_V33 = 64 + 33,
    UNW_VE_V34 = 64 + 34,
    UNW_VE_V35 = 64 + 35,
    UNW_VE_V36 = 64 + 36,
    UNW_VE_V37 = 64 + 37,
    UNW_VE_V38 = 64 + 38,
    UNW_VE_V39 = 64 + 39,
    UNW_VE_V40 = 64 + 40,
    UNW_VE_V41 = 64 + 41,
    UNW_VE_V42 = 64 + 42,
    UNW_VE_V43 = 64 + 43,
    UNW_VE_V44 = 64 + 44,
    UNW_VE_V45 = 64 + 45,
    UNW_VE_V46 = 64 + 46,
    UNW_VE_V47 = 64 + 47,
    UNW_VE_V48 = 64 + 48,
    UNW_VE_V49 = 64 + 49,
    UNW_VE_V50 = 64 + 50,
    UNW_VE_V51 = 64 + 51,
    UNW_VE_V52 = 64 + 52,
    UNW_VE_V53 = 64 + 53,
    UNW_VE_V54 = 64 + 54,
    UNW_VE_V55 = 64 + 55,
    UNW_VE_V56 = 64 + 56,
    UNW_VE_V57 = 64 + 57,
    UNW_VE_V58 = 64 + 58,
    UNW_VE_V59 = 64 + 59,
    UNW_VE_V60 = 64 + 60,
    UNW_VE_V61 = 64 + 61,
    UNW_VE_V62 = 64 + 62,
    UNW_VE_V63 = 64 + 63,
    UNW_VE_VM0 = 128 + 0,
    UNW_VE_VM1 = 128 + 1,
    UNW_VE_VM2 = 128 + 2,
    UNW_VE_VM3 = 128 + 3,
    UNW_VE_VM4 = 128 + 4,
    UNW_VE_VM5 = 128 + 5,
    UNW_VE_VM6 = 128 + 6,
    UNW_VE_VM7 = 128 + 7,
    UNW_VE_VM8 = 128 + 8,
    UNW_VE_VM9 = 128 + 9,
    UNW_VE_VM10 = 128 + 10,
    UNW_VE_VM11 = 128 + 11,
    UNW_VE_VM12 = 128 + 12,
    UNW_VE_VM13 = 128 + 13,
    UNW_VE_VM14 = 128 + 14,
    UNW_VE_VM15 = 128 + 15, // = 143

    // Following registers don't have DWARF register numbers.
    UNW_VE_VIXR = 144,
    UNW_VE_VL = 145,
};

#endif
